How to use try_close method in keyboard

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TServer.py

Source:TServer.py

...132    def __init__(self, *args):133        TServer.__init__(self, *args)134        self.children = []135    def serve(self):136        def try_close(file):137            try:138                file.close()139            except IOError as e:140                logger.warning(e, exc_info=True)141        self.serverTransport.listen()142        while True:143            client = self.serverTransport.accept()144            if not client:145                continue146            try:147                pid = os.fork()148                if pid:149                    self.children.append(pid)150                    self.collect_children()151                    itrans = self.inputTransportFactory.getTransport(client)152                    otrans = self.outputTransportFactory.getTransport(client)153                    try_close(itrans)154                    try_close(otrans)155                else:156                    itrans = self.inputTransportFactory.getTransport(client)157                    otrans = self.outputTransportFactory.getTransport(client)158                    iprot = self.inputProtocolFactory.getProtocol(itrans)159                    oprot = self.outputProtocolFactory.getProtocol(otrans)160                    ecode = 0161                    try:162                        try:163                            while True:164                                self.processor.process(iprot, oprot)165                        except TTransport.TTransportException:166                            pass167                        except Exception as e:168                            logger.exception(e)169                            ecode = 1170                    finally:171                        try_close(itrans)172                        try_close(otrans)173                    os._exit(ecode)174            except TTransport.TTransportException:175                pass176            except Exception as x:177                logger.exception(x)178    def collect_children(self):179        while self.children:180            try:181                pid, status = os.waitpid(0, os.WNOHANG)182            except os.error:183                pid = None184            if pid:185                self.children.remove(pid)186            else:...

wrap_squid_base.py

Source:wrap_squid_base.py

...15  #-----------16  def __enter__(self):17    return self18  def __del__(self):19    self.try_close()20  def __exit__(self, type, value, tb):21    self.try_close()22  #-----------23  def init(self, part) :24    self.part = part25    found = 026    try:27      path = os.path.dirname(os.path.realpath(__file__))28      source = open(path + '/wrap_squid.txt', 'r')29      for row in source :30        row = row.strip()31        if(len(row)) :32          t = row.split('=')33          if('ip' == t[0]) :34            self.serverHost = t[1]35            found += 136          elif('port' == t[0]) :37            self.serverPort = int(t[1])38            found += 139        if(2 == found) :40          break   41    except:42      print ('ERR no open source')43      return False44    return True45  #-----------46  def try_close(self) :47    if(None == self.s):48      return49    try:50      self.s.shutdown(SHUT_RDWR)51    except: 52      pass53    self.s.close()54    self.s = None55  #-----------56  def connect(self) :   57    result = False58    self.try_close()59    if(self.serverPort and not '' == self.serverHost) :60      try:61        self.s = socket(AF_INET, SOCK_STREAM)62        self.s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)63        self.s.connect((self.serverHost, self.serverPort))64        self.s.send(bytes(self.part + '\n', 'utf-8'))65        responce = self.s.recv(1024)66        responce = responce.decode("utf-8")67        if(not responce == 'ok-' + self.part + '\n') :68          self.try_close()69        else :70          result = True71      except Exception as e: 72        print("ERR " + str(e))73        self.try_close()74    return result75  #-----------76  def send(self, data) :77    if(None == self.s) :78      if(not self.connect()) :79        print("Err no Conn\n")80        return False81    try:82      sent = self.s.sendall(data)83      if(None == sent) :84        return True85      else:86        self.try_close()87        return False88    except:89      self.try_close()90    return False91  #-----------92  def recv(self) :93    try:94      data = self.s.recv(1024)95      if(not data) :96        self.try_close()97        return None      98      else :        99        return data100    except:101      self.try_close()102    return None      103#----------------------------------------104def conv_input(data) :105  data = data.encode("utf-8")106  #data = data.encode("iso8859-1")107  data = base64.b64encode(data) + b'\n';108  return data109#----------------------------------------110def conv_output(data) :111  return (data.decode("utf-8")).strip()112#----------------------------------------113def try_send(conn, line) :114  if(conn.send(line)) :115    data = conn.recv()116    if(not None == data) :117      data = conv_output(data)118      print(data)119      return True120  conn.try_close()121  return False122#----------------------------------------123def perform_wrap_squid(conn) :124  #conn.connect()125  for line in sys.stdin:126    if(not line) :127      break128    line = line.strip()129    if(len(line) > 0) :130      line = conv_input(line)131      try:132        if(not try_send(conn, line)) :133          time.sleep(0.2)134          if(not try_send(conn, line)) :135            print("ERR no send\n")136            conn.try_close()137            #return138      except:139        pass140#----------------------------------------141def wrap_squid_base(helper_text) :142  with connection() as conn :143    if(conn.init(helper_text)):144      perform_wrap_squid(conn)145      conn.try_close()...

__init__.py

Source:__init__.py

2from . import exceptions3PROTO = 'CAP/0.1.0'4BUFSIZ = 10245local_urls = []6def try_close(func):7    """Decorator to wrap function in a try/except for OSError.""" 8    def tc(*args, **kwarg):9        try:10            return func(*args, **kwarg)11        except (OSError, EOFError):12            raise exceptions.SocketClosed()13    return tc14def local(func):15    """Decorator cancel network if local_urls != []""" 16    def nop():17        pass18    def ll(*args, **kwarg):19        if local_urls == []:20            return func(*args, **kwarg)...

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